Centrifugal pump



July 9, 1946. A. P. RUTH CENTRIFUGAL PUMP Filed Dec. 17, 1945 INVENTOR.

fizz/Zak Pliafi Array/v 15 Patented Jilly 9, 194s UNITED STATES PATENTorrics Arthur P. Ruth, Houston, Tex. Application December 17, 1945,Serial No. 635,539

6 Claims. (01. 103-5) Thisiinvention relates to a centrifugal pump. Theinvention herein shown constitutes a continuation, in part, of mycopending application for Combination pressure tank and pump, filedFebruary 26, 1945, under Serial No. 579,853. The general subject matterof said pending application includes a centrifugal pump located in asurrounding housing with a suction inlet passageway leading into thepump through the housing from the source of liquid, with a nozzleleading.

from within the housing and discharging into the passageway, saidhousing having a dischargeoutlet at the top thereof. Said abovedescribed sub- Ject matter is not claimed herein except in combinationwith bailles around the inner wall of the housing and provided withgates for the passage of gas, or air, to facilitate the exit of saidgas, or air, from the housing.

An object of the invention is-to provide a pump of the characterdescribed specially designed for pumping either liquid or a non-liquidfluid such as air or gas.

Another object of the invention is to provide a pump of the centrifugal.type with a surrounding housing, preferably cone shaped for maintainingthe pump constantly submerged in liquid and having a suction inletpassageway leading into the pump through the housing from the source ofliquid, or other fluid being pumped and having a nozzle leading fromwithin the housing and discharging into said passageway, said housinghaving a discharge outlet at the top thereof.

It is a further object of the invention to provide a pump assembly orthe character described having a plurality of baiile rings spaced apartand extending around the inside wallof the housing, said ring beinginterrupted at the top ofthe housing to provide gates for the passage ofair, or gas, collected by the baiile rings, out to the discharge outletof the housing.

Other objects and advantages will be apparent from the followingspecification which is illustrated by the accompanying drawing, wherein-Figure 1 is a side view of the complete assembly shown partly insection.

. Figure 2 is a cross-sectional view taken on the line 2-2 of Figure 1;and g Figur 3 is a cross-sectional view taken on the line 3-3 ofFigure 1. 4

Referring now more particularly to the drawing wherein like numerals ofreference designate the same parts in each of the figures, the numeral Idesignates a motor, preferably an electric motor,

which is supported on the stand 2 and to one end of which the cage 3 issecured, said cage having an end plate I supported by the base flange 5.

Mounted on the end plate 4 there is a centrifugal pump 6 which embodiesa pump casing l and an impeller. The impeller is fastened to the shaft 9of the motor.

The pump casin I is provided with side outlets i0, ill through which theliquid, or other fluid, may be discharged from the pump.

There is a pump housing-1i i which is preferably of a conical shape andwhose large end has the internal flange i2 therearound which is boltedto the end plate 4 around the pump so that the pump will be completelyenclosed by said housing.

The housing II has a discharge outlet i3 near the large end thereof intowhich a discharge line may be connected. a

As shown the apex of the conical shaped housing is internally threadedto receive the end of a suction line I4 which may be screwed therein.

Within the housing ii and screwed into said last mentioned end of thehousin in alignment to the suction line H there is a tubular jet bodyit. A Venturi tube i6 is located within the pressure chamber i1 formedby said housing with one end of ,saidVenturi tube connected into theintake of the pump and with the other end thereof screwed into the innerend of the jet body.

The Jet body has one or more passageways i8 therethrough through whichthe liquid or other fluid can flow from the intake pipe I 6 into theVenturi passageway through the tube l8 and the jet body has a side inletpassageway l9 through which the liquid, under pressure, may pass fromthe pressure chamber through the Jet body and thence through the jetnozzle into said Venturi passageway. g

It is to be understood that the housing I i will at all times be filledwith liquid and this liquid will be, at all times, under pressure fromthe pump and the liquid under pressure. flowing into the passageway l9and through the nozzle 20 into the Venturi passageway through the tubel8 will create a suction therein thus drawing water from the well towhich the suction line H is connected or drawing in liquid from anothersource oi! liquid to which said line may be connected or drawing influid such as air through said suction line I.

Secured to the inside walls of the pump housing are the arcuate bai'lierings 2| which are spaced apart from end to end 01' the housing andwhich are interrupted at the top of the housing, as shown in Figures 1and 8, thus providing gates 22 for the passage 0! air or other similarfluid. I: water. or similar liquid,.is being pumped the with theoperation thereof.

, 3 housing H will be continuously fllled with said liquid so as to keepthe pump submerged and air drawn in through the suction pipe will passLikewise if air or other similar fluid is being pumped the chamber I!will be filled with liquid and air, or gas, will be drawn in through thesuction line l6 and discharged by the pump into the liquid in thechamber l1 and will be entrapped by the baiiles 2| and caused to travelaround the housing wall to the outlet gates 22 and thence to thedischarge opening 13 so that the air or other gaseous fluid will not berecirculated through the p pv The drawing and description areillustrative merely while the broad principle of the invention will bedefined by the appended claims.

What I claim is:

1. A pump assembly comprising, a housing having a discharge outlet andenclosing a pressure chamber, a pump within the chamber, a

suction line leading from without the housing and connected into thepump intake, said pump having a discharge outlet into said chamber,baifles around the inner wall of the housing and the chamber walls andspaced apart and having gates at the top of the chamber to allow passageof entrapped air or "gaseous fluid to said dis charge outlet. f

3. A pump assembly comprising, a housing having a discharge outlet andenclosing a pressure chamber, a pump within the chamber, a suction lineleading from without the housing and 4 connected into the pump intake,said pump having a discharge outlet into said chamber, baiiles aroundthe inner wall of the housing and spaced apart and being interrupted atthe upper part of the housing to provide gates through the bafiies.

and a nozzle arranged to discharge liquid, under pressure, from thepressure chamber into the suction line.

4. A pump assembly comprising, a housing having a discharge outlet andenclosing a pressure chamber, a pump 'within the chamber, a suction lineleading from without the housing and connected into the pump intake saidpump having a discharge outlet into said chamber, bailies around theinner wall of the housing and spaced apart and being interrupted at theupper part of the housing to provide gates through the battles, a.

Venturi tube incorporated into the suction line within said chamber anda nozzle at the outer end at said tube arranged to project liquid, underpressure, from said pressure chamber into the stream flowing throughsaid tube.

5. A pump assembly comprising a cone-shaped housing having a dischargeoutlet, at the large end thereof, and enclosing a pressure chamber. apump within the chamber, a suction line leading from without the housingand connected into the pump intake, said pump having a discharge outletinto said chamber, baflies around the inner wall oi'the housing andspaced apart and being interrupted at the upper part of the housing toprovide gates through the bafflesa 6. Apump assembly comprising a.cone-shaped housing having a discharge outlet, at the large end thereof,and enclosing a pressure chamber, a pump within the chamber, a suctionline leading from without the housing and, connected into the pumpintake, said pump having a discharge outlet into said chamber, bailiesaround the inner wall oi the housing and spaced apart and beinginterrupted at the upper part of the housing to provide gates throughthe bames, a Venturi tube incorporated into the suction line and locatedwithin said chamber and a nozzle at the outer end of the tube arrangedto project liquid,

under pressure, from the pressure chamber into the stream flowingthrough said tube.

ARTHUR P. aum'

